Added readme and use custom port

README.md

@@ -0,0 +1,21 @@
+Usage
+===
+
+Copy .env.example to .env and edit it.
+
+Developement
+---
+
+```
+yarn install
+yarn dev:server
+```
+
+Production
+---
+
+```
+yarn install
+yarn build
+node dist/server/server.js
+```